Method of making welded and riveted joints



Patented Apr. 24, 1923.

UNITED STATES PATENT OFFICE.

ALLEN E. OSTRANDER, F RIDGEWOOD, NEW JENSEY, ASSIGNOR T0 AMERICAN CAR AND FOUNDRY COMPANY, OF ST. LOUIS, MISSOURI, A CORPORATION OF MISSOURI.

ICETHOD O1 MAKING WEIiDED AND RIVETED JOINTS.

Application filed February 5, 1921. Serial No. 442,781.

To all whom it may concern:

Bergen. State 0 New Jersey. and being a citizen of the United States, have invented certain new and useful Improvements in a blethod of Making \Velded and Riveted Joint-s, of which the following is a full, clear, and exact description, such as will enable others skilled in the art to which it appertains to make and to use the same, reference being had to the accompanying drawings, which illustrate the preferred form of the invention, though it is to be understood that the invention is not limited to the exact details of construction shown and described, as it is obvious that various modifications thereof within the scope of the claims will occur to persons skilled in the art.

In said drawings: Figu re 1 is a plan view of my improved welded and riveted joint, the welded portions being indicated; and

Figure 2 is a section taken on the line 2-2 of Fig. 1.

other treatment to prevent leakage.

In the drawings, 1 and 2 designate metal plates such are used in the manufacture of a railwa ear tank or other liquid container.

To unite the plates, the ends are placed so that the rows of rivet openings in the lates are in alinement, giving, as shown in an overlapping of the plates that extends for a short distance on each side of the center line of the rivet openings.

It is preferable that the welds be made at the late edges, 5 shown in Fig. 2, and

this we ding is to ously with the riveting. or this the riveting machineis provided wit accom lished simultane urpose a plurality of pairs of contacts, two pairs being adapted to engage the plates along the line of each plate edge, that engage with the plates simultaneously with the exerting of pressure upon the rivet and while the plates are held firmly together by the force exerted by the riveting machine. The contacts are spaced from each other along the line of the plate edge and are, as shown in Fig. 1, designed to be, a means for welding, each time a rivet is headed, a pair of se arated reetangnlar areas on each side of t 1e rivet, the greater dimension of each rectangular extending parallel to the line of the plate edge, that is, when the rivet 3 is headed, areas 4, 5, 6 and 7, indicated by the solid cross section lines, will be welded. When rivet 8 is headed, the areas 9, 10, 11 and 12, indicated by the dotted cross section lines, will be welded. For example, as shown in Fig. 1 the areas 4 and 5 extend between the points 4, 4" and 5', 5", respectively, while the areas 9 and 10 extend between the oints 9', 9" and 10', 10", respectively. en the rivet 13 is headed, the areas 14, 15, 16 and 17, indicated by solid cross section lines, will be welded. It will be noted that areas, such as 14 and 17, coincide with the areas 5 and 6 and that areas such as 9 and 12, include parts of the areas 4, 5, 6 and 7 and the areas lying between the areas 4 and 5 and areas 6 and 7. Similarly, the areas 5 and 6 include parts of the areas 9, 10, 11 and 12 and the areas lying between areas 9 and 10 and areas 11 and 12, that is, the areas are so proportioned, with respect to the rivet spacing, that there is an overlapping of the areas successively sub jected to the action of the welding electrodes so that when the last rivet is headed the row of overlapping welds successively made on each side of the line of rivets have overlapped to such a degree that a continuous weld is formed extending completely across the late.

at I claim is:

"1. The process of uniting plates which consists in welding them at a plurality of spaced aligned areas simultaneously and forming a succession of such welds with the areas welded at successive welds overlapping to form a continuous weld.

2. The process of uniting plates which consists in riveting said plates together and welding them at a pair of spaced aligned areas simultaneously with the heading of each rivet, the areas welded at successive welds overlapping to form a continuous weld In witness whereof I have hereunto set niv hand in the prusencc of two witnesses.

ALLE; E. ()STRANDER. Witnesses LEO V. JOYCE, l-lnmwm J. VVAHL.

Certificate of Correction.

It. is hereby certified that the State of incorporation of the assignee in Letters Patent No. 1,459,523, granted April 24, 1923, upon the application of Allen E. Ostrander, of Bi gewood, New Jersey, for an improvement, In Methods of Making Welded and Riveted Joints, was erroneously given as Missouri, whereas said State should have been iven as :ieu' Jersey, as shown by the records of assignments in this office; am. -that the said Letters Patent should be read with this -,orrect ion therein that the same may conform to the record of the case in the Patent Office.

Signed and sealed this 29th day of May, A. D., 1923.

[5mm] KARL FENNING,

Acting Commissioner of Patents. 

